Accès membres

Mot de passe perdu? S'inscrire

14-10-2013 17:19

Chris Yeates Chris Yeates

Bonsoir tousI note there have been at least two in

13-10-2013 18:00

Salvador Tello

Hola a todos.He encontrado este hongo creciendo en

11-10-2013 12:19

Garcia Susana

Hi allfound on dung horse.I think this may be Spor

13-10-2013 10:38

Ibai Olariaga Ibarguren

Hi! This is a second species found together with t

07-09-2013 21:00

Chris Yeates Chris Yeates

Bonsoir tousWhile searching for aero-aquatic fungi

12-10-2013 21:17

Maren Kamke Maren Kamke

Hi everybody, on the coast we found an ascomycete

11-10-2013 10:45

Eike Heinemann

Hello otherPezizaceae I found this yesterday with

12-10-2013 07:05

Christian Lechat Christian Lechat

Dear friends,I look for the following paper: Nectr

11-10-2013 19:23

Bometon Javier Bometon Javier

Hola a todosAlguna idea para este ascomiceto amari

11-10-2013 17:11

Chris Yeates Chris Yeates

Bonsoir touscollected a couple of week ago, and al

« < 1126 1127 1128 1129 1130 > »
Mollisia spectabilis
Chris Yeates, 14-10-2013 17:19
Chris YeatesBonsoir tous
I note there have been at least two interesting threads concerning this taxon:
http://www.ascofrance.com/search_forum/13005
http://www.ascofrance.com/search_forum/20263

A recent find of what I think has to be this species has given me the opportunity to take some detailed micro-photo's which may be of interest to some members?. As has been commented upon by others this fungus sits very uneasily in Mollisia; gross morphology certainly suggests something in that direction, as does the structure of the excipulum, but paraphyses and asci do not look right for Mollisia at all.
Among the features I note is that while within the paraphyses there are examples of what might be termed 'pseudo-septa', in quite a number of instances true septa could be seen (as in the 8th photo). Also the amyloid ring was often very faint in Lugol, which may account for the statement by Graddon in TBMS that the asci were inamyloid.
The fungus was (sadly) solitary on a Quercus leaf (probably Q. petraea); free ascospores were scanty but those present measured 10.5-13.4 x 4.8-5.8. I am hoping further ascomata appear on the leaves I collected . . . .

Cordialement
Chris
  • message #25476
  • message #25476
  • message #25476
  • message #25476
  • message #25476
  • message #25476
  • message #25476
  • message #25476
  • message #25476
Hans-Otto Baral, 14-10-2013 18:36
Hans-Otto Baral
Re : Mollisia spectabilis
Yes, it is always sparse and nobody knows where it belongs. I compared it with Dennisiodiscus (!), especially those species without hairs, but the apical ring points more to a Helotiaceae.

Zotto